PLDT Need help regarding virtual server in PLDTmyDSL

[rmslive]

hi mga ka symba,

gusto ko na i-untog ung ulo ko di ko ma-solve ung problem na na-e-encounter ko eh.

meron po akong web server na finorward ko ung server ip address ko to port:80

so basically working naman siya, meron lang problem,

inside my network, pag gamit ko server ip address(local ip address ng server ko) ok naman, pero pag inside my network ginamit ko ung external ip address ko, ni-re-return sakin is ung webUI ng router ko, instead na dun sa webserver ko.

ano po kaya ang problema?

eto po ang settings ko:

Servername: sample
Protocol: tcp
local ip address: (ip ng server ko)
local port: 80-80
wan ip address: pppoe1
wan port: 80-80
state: enabled

then i even tried this:

Servername: sample
Protocol: tcp
local ip address: (ip ng server ko)
local port: 80-80
wan ip address: (external ip ko)
wan port: 80-80
state: enabled

but still fail. ano po kaya ang problem? dati naman po gamit ang ibang router ng PLDT, and using port forwarding not virtual server ok naman po.

even if im inside my network pag browse ko using external ip address ko pinapasok ako sa website na gusto ko makita from my server.

i really need some help. hehe

im using speedsurf 504AN router.